. Acadian geology [microform] : the geological structure, organic remains and mineral resources of Nova Scotia, New Brunswick and Prince Edward Island. Geology; Paleontology; Geology; Geology; Geologie; Paléontologie; Géologie; Géologie. i â¢â¢1^. i ;â if w 1,1 â mi: '^*i ^7! i r i! H^tl i M il ILL:. 1 614 THE SILURIAN PEUIOD. afforded trilohites of the genus Paradoxidcs. Tlicse fossils would indicate a position in the lower part of the Lower Silurian scries, possibly on the horizon of the Potsdam sandstone or Lingula flags. If so, the Lower Silurian limestones are either absent or
. Acadian geology [microform] : the geological structure, organic remains and mineral resources of Nova Scotia, New Brunswick and Prince Edward Island. Geology; Paleontology; Geology; Geology; Geologie; Paléontologie; Géologie; Géologie. i â¢â¢1^. i ;â if w 1,1 â mi: '^*i ^7! i r i! H^tl i M il ILL:. 1 614 THE SILURIAN PEUIOD. afforded trilohites of the genus Paradoxidcs. Tlicse fossils would indicate a position in the lower part of the Lower Silurian scries, possibly on the horizon of the Potsdam sandstone or Lingula flags. If so, the Lower Silurian limestones are either absent or buried by the uMCcnformable superposition of the next scries, or of the carbon- iferous beds which in some places immediately adjoin these older rocks. It is to be observed, , that the mineral character of the rocks themselves very closely resembles that of some portions of the " Quebec group " of Sir William Logan. If coeval with this, they would be somewhat higher in the Lower Silurian scale; but I think it may be safely affirmed that no newer group than the Quebec series can claim them with any show of reason. We may therefore in the meantime regard these rocks as probably representative of some portion of the lower part of the Lower Silurian, but without venturing to assign them to any definite horizon, and admitting the possibility that future researches may establish differences sufficient to divide them into distinct formations. More especially in the western part of Nova Scotia, where this band attains to great breadth, I entertain the hope that a continuous sequence may be one day ascei'tained from the Devonian to the base of the Lower Silurian. Large though this district is, there is by no means so great a variety in its rocks as in those of the district last described; and most of them are nearly related to each other, being composed of the same materials variously arranged. I shall notice them specially with reference to their differenc
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
